Originally posted by Wfloydboy16
First and foremost, there's a clear difference between the Black Ops and Black Ops II prestige exploits. The Black Ops prestige exploit was in fact a hack. It required you to install a modified file onto your PS3, and go through a process to activate it.
The Black Ops II prestige exploit was just a glitch. No modified file was required. You didn't have to install any prohibited files onto your PS3/Xbox. The glitch could have been done intentionally or unintentionally, without the need of any modding tools or bypass methods.
(I know I repeated myself a few times, but excuse my errors.)